A posture collar is a rigid collar that is wide enough to restrict movement of the neck.
Posture collars typically flare widely at the front to reach from the chin down to the collarbone, preventing the wearer from hanging their head or looking downward. Such collars are typically made from leather, but may also be made from metal, rubber or plastics such as PVC. Posture collars are often decorated, and may include other bondage elements such as locking closures, decorative spikes or D-rings for attaching restraints.
Special type of posture collar is a neck corset.
This article is based on "Posture collar" from the free encyclopedia Wikipedia (http://en.wikipedia.org). It is licensed under the terms of the GNU Free Documentation Licencse. In the Wikipedia you can find a list of the authors by visiting the following address: http://en.wikipedia.org/w/index.php?title=Posture+collar&action=history